NEW! Desiccant Cartridge for Gas drying and purifying RETAINERS TO PREVENT ATTRITION OF THE DESICCANT A N D GAS C H A N N E L I N G
FILTER DISCS FOR REMOVAL OF DUST A N D OTHER SUSPENDED IMPURITIES
on
systems
for 206 61
Densitometers. Bulletin on unit for thin layer chromatography. 89 Dessicators. Model made of shatter resistant plastic. 13
1 / 4 " PIPE THREAD
T h i s new d e h y d r a t o r - p u r i f i e r c a r t r i d g e w i l l remove water, oil, CO2 and most other trace impurities in gas streams to less than 1 ppm. Desiccant charge lasts as long as 5 0 0 0 scf of cylinder gas. When refrigerated in liquid N2, w i l l r e m o v e m e t h a n e , n i t r o g e n , and oxygen from gas streams like helium. Replacement packets available. USES: Chromotographic Carrier Gases, I n s t r u m e n t Air, Helium, Hydrogen, Nitrogen, Oxygen, Carbon Dioxide, Chlorine, Ammonia, etc. SEND Purchase Order or WRITE FOR INFORMATION
M u l t i f o r m D e s i c c a n t P r o d u c t s Inc. P. O. B o x 1 6 5 2 2 2 2 Elmwood Avenue B u f f a l o , N e w Y o r k 1421"7 Circle No. 87 on Readers' Service Card
HARSHAW
POLISHED
OPTICS
Materials available include lithium fluoride, calcium fluoride, barium fluoride, sodium fluoride, sodium chloride, potassium chlo ride, potassium bromide, silver chloride, KRS-5, KRS-6, thallous chloride, thallous bromide, cesium bromide and cesium iodide. Special crystals can be custom grown to customer specifications. Other products include specially oriented crystals, attenuated total reflection components, and X-ray monochrometer plates. For additional information write to the Crystal-Solid State Division, The Harshaw Chemical Company, 1945 East 97th Street, Cleveland, Ohio 44106, phone area code 216, 721-8300. Write for our booklet "Harshaw Polished Optics'9.
CRYSTAL-SOLID
STATE
HARSHAW CHEMICAL
DIVISION COMPANY
1945 E. 97th St. · Cleveland, O. 44106 Phone Area 216 721-8300 Circle No. 48 on Readers' Service Card •
Counters. Data tritium counting.
Crystals. Catalog offers data on opti cal crystals. 85 HEX FOR EASY GRIPPING W H E N INSTALLING FITTINGS
126 A
Connectors. Units for multiple con nections of flexible tubing. 91
Crystals. Info on complete line.
O - R I N G SEAL
THE
Product Capsules
ANALYTICAL CHEMISTRY
Dewars. Unbreakable model has l 3 / 4 liter vessel. 162 Dialyzers. Unit for recovery of dialyzable salts and removal of acids. 11 Dryers. Acrylic column dries air to a dew point of - 1 0 0 ° Γ. 60 Dryers.
10 liter units with 40 ports. 131
Electrodes. Catalog on 121 different pH electrodes. 220 Electrodes. Bulletin on glass, refer ence and combination models. "103 Electrodes. Line for use in spectros 2 copy. Electrophoresis Units. System elimi nates staining. 33 Electrophoresis Units. viruses and nucleic acids.
Separates 156
Electro-polarfzers. Unit uses 5-inch 27 chart. Equipment. Data on syringes, solid samplers and related supplies. 59 Evaporators. Rotary model has all glass and teflon surfaces. 207 Filters. 36-page booklet, "Detection and Analysis of Contamination." 123 Filters. Paper has less than 0.007% 9 7 ash. Filters. New catalog being prepared. Reserve a copy. 29 Furniture. Catalog describes full line. 47 Gases. Electric furnace reduces gas for fusibility of coal ash. 195 Gases. Flow gas for geiger counters. 174 Gases. Flow gas 8.5% hydrogen, 91.5% helium. I72 Gases. Mixtures for calibrating a process gas chromatography unit. 163 Gases. Five standard mixtures utilize ethylene oxide sterilization. 182 Gases. 90% argon, 10% methane for use as a flow gas. I42
